Gaya APA
Porter, Michael E. (2004).
Competitive strategy : techniques for analyzing industries and competitors .
New York:
The Free Press.
Gaya Chicago
Porter, Michael E.
Competitive strategy : techniques for analyzing industries and competitors.
New York:
The Free Press,
2004.
Buku.
Gaya MLA
Porter, Michael E.
Competitive strategy : techniques for analyzing industries and competitors.
New York:
The Free Press,
2004.
Buku.
Gaya Turabian
Porter, Michael E.
Competitive strategy : techniques for analyzing industries and competitors.
New York:
The Free Press,
2004.
Buku.